CN207968012U - A kind of novel electric bicycle charger circuit - Google Patents
A kind of novel electric bicycle charger circuit Download PDFInfo
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- CN207968012U CN207968012U CN201820373413.8U CN201820373413U CN207968012U CN 207968012 U CN207968012 U CN 207968012U CN 201820373413 U CN201820373413 U CN 201820373413U CN 207968012 U CN207968012 U CN 207968012U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The utility model is related to a kind of novel electric bicycle charger circuits.Including full-bridge DC DC converter circuits, embedded Control circuit, voltage sampling circuit, current sampling circuit and control relay circuit.In entire charging process, embedded Control circuit acquires the voltage and current signals of battery by voltage and current sample circuit, and the action of switching tube in pwm signals control full-bridge DC DC converters is sent out after internal algorithm operation, to ensure being precisely controlled for battery three stage charging system process, compared to traditional charger reliability and safety all highers.Control terminal of the embedded Control circuit as entire circuit, it detects and is disconnected the relay being connected on battery by control relay circuit after battery is fully charged, in order to avoid battery bulge and flowing water problem caused by over-charging of battery, extend battery and avoid the caused safety problem of battery last charging.
Description
Technical field
The utility model is related to the fields of charging, and in particular to a kind of novel electric bicycle charger circuit.
Background technology
With the progress of society and economic development, a large amount of uses of the fuel such as oil, coal, cause serious environment
Problem.Electric vehicle is as a kind of emerging vehicles, and because it is not necessarily to the use of fuel, the advantages that emission-free discharge receives people
Favor.Core component one of of the lead-acid accumulator as electric vehicle, the guarantee of run steady power of electric vehicle
Source, once it breaks down, it will serious consequence will be caused.Show that the incorrect of lead-acid battery of electric vehicle fills through investigation
Electric mode will destroy the chemical balance of inside battery, and battery life is caused to be decayed, and this mode causes battery to overcharge
Phenomenon is sometimes prone to cause battery and charger exploding and firing due to overheat.
Nowadays, common battery charging arrangements are three stage charging systems, not only substantially increase charge efficiency, charging time
Shorten, and maintain the chemical balance of inside battery, increases battery.It includes mainly a little three ranks that three-stage, which is filled,
Section：Constant high current fast charge, constant-potential charge, decompression floating charge.
Constant high current fast charge is to restore battery power rapidly, usually filled to accumulator with the constant current of 4A
Electricity, 80% electricity of battery recovery after this stage, charging voltage is relatively low at this time, but can limit charging current in a fixed number
Within the scope of value.When the voltage of battery is risen to a certain extent, into the constant-voltage charge of second stage, this stage belongs to trickle charge
The supplement electric process of Cheng Shixian batteries.Phase III is decompression floating charge, starts to use after the electric current detected is reduced to certain value
Smaller electric current charging is until terminate charging after meeting certain condition.
Traditional battery charging arrangements have constant-voltage charge and constant-current charge, both charging modes belong to hard controlling party
Formula, charge efficiency is low and reduces the service life of battery.Traditional battery charging lacks the function of independently powering off, and causes electricity
The phenomenon that pond overcharges and for a long time charging will damage battery, or even some safety accidents occur.
Invention content
The purpose of this utility model is to provide a kind of novel electric bicycle charger circuits, by main control chip to full-bridge
The switching tube of DC-DC converter is controlled, and is realized the three stage charging system process of lead-acid battery, is avoided electric vehicle because bad
Security risk caused by charging.
To achieve the above object, the technical solution of the utility model is：A kind of novel electric bicycle charger circuit, including it is complete
Bridge DC-DC converter, embedded Control circuit, voltage sampling circuit, current sampling circuit and control relay circuit；It is described complete
Bridge DC-DC converter include four mosfet, a high frequency transformer and four diodes, the rectified circuit of input terminal with it is defeated
Enter power supply to be connected, output end is connected by the controllable switch of control relay circuit control with battery through one；The embedded control
Circuit processed and the full-bridge DC-DC converter, embedded Control circuit, voltage sampling circuit, current sampling circuit and relay
Control circuit connects, and the voltage sampling circuit, current sampling circuit and the DC output end of the full-bridge DC-DC converter connect
It connects, so that embedded Control circuit is through voltage sampling circuit, the voltage of current sampling circuit sampling battery, current signal, into
And control full-bridge DC-DC converter, the working condition of control relay circuit.
In one embodiment of the utility model, the embedded Control circuit uses TMS320F28069 chips.
In one embodiment of the utility model, the controllable switch is relay.
In one embodiment of the utility model, the full-bridge DC-DC converter further include the first to the 9th capacitance, first to
4th resistance, the 5th diode, inductance, one end of the first mosfet and one end of the 3rd mosfet, the first capacitance one end,
One end connection of one end of the second capacitance, one end of third capacitance, the 4th capacitance, and as the full-bridge DC-DC converter
First input end, the other end and the other end of the first capacitance of the first mosfet, one end of the 2nd mosfet, the 5th capacitance
The first input end connection of one end, high frequency transformer, the other end of the 3rd mosfet and the other end of the 4th capacitance, the 4th
One end of mosfet, one end of the 6th capacitance, high frequency transformer the second input terminal connection, the other end of the 2nd mosfet with
The other end of 5th capacitance, the other end of the second capacitance, the other end of third capacitance, the other end of the 4th mosfet, the 6th electricity
The other end of appearance connects, and as the second input terminal of the full-bridge DC-DC converter, the first output end of high frequency transformer with
The anode of first diode connects, and the second output terminal of high frequency transformer is connect with the cathode pole of third diode, the one or two pole
The cathode of pipe is connect with one end of the cathode of the second diode, the anode of the 5th diode, inductance, the anode of third diode with
One end of first resistor, one end of the 7th capacitance, the anode of the 4th diode, one end of the 4th resistance, the 8th capacitance one end,
One end of 9th capacitance connects, and as the second output terminal of the full-bridge DC-DC converter, the cathode of the 5th diode and the
The other end connection of the other end of one resistance, the 7th capacitance, the other end of inductance is through second resistance, 3rd resistor and the 4th resistance
Other end connection, inductance also connect with the other end of the other end of the 8th capacitance, the 9th capacitance, and as the full-bridge DC-
First output end of DC converters.
In one embodiment of the utility model, the voltage sampling circuit includes the 5th resistance, the tenth capacitance, the 11st electricity
Hold, the 6th diode, one end of the 5th resistance is connect with the tie point of 3rd resistor and the 4th resistance, the other end of the 5th resistance
With one end of the tenth capacitance, one end of the 11st capacitance, the anode of the 6th diode, embedded Control circuit voltage sampling port
Connection, the other end of the tenth capacitance, the other end of the 11st capacitance are connected to GND, and the cathode of the 6th diode is connected to 3.3V
Power end.
In one embodiment of the utility model, the current sampling circuit include current sample chip ACS712, the 6th to
7th resistance, the 12nd to the 14th capacitance, the 7th diode, the IP+ pins of current sample chip ACS712, IP- pins with
The DC output end of the full-bridge DC-DC converter connects, and VCC pin and the 5V power ends of current sample chip ACS712 connect
It connects, and through the 12nd capacitance connection to GND, the VOUT pins of current sample chip ACS712 are through the 6th resistance and the 7th resistance
The anode connection of one end, the 7th diode, the FILTER pins of current sample chip ACS712 are adopted through the 13rd capacitance with electric current
The GND pin of sample chip ACS712, the other end of the 7th resistance, the 14th capacitance one end be connected and be connected to GND, the seven or two
The cathode of pole pipe is connected with the other end of the 14th capacitance is connected to the current sampling port of embedded Control circuit.
Compared to the prior art, the utility model has the advantages that：A kind of novel electric vehicle of the utility model
For charger circuit in entire charging process, embedded Control circuit acquires the voltage of battery by voltage and current sample circuit
And current signal, and send out after internal algorithm operation the dynamic of switching tube in pwm signals control full-bridge DC-DC converter
Make, to ensure being precisely controlled for battery three stage charging system process, compared to traditional charger charge efficiency higher and reduces
For the destruction of inside battery chemical balance；Control terminal of the embedded Control circuit as entire circuit, detects that battery is full of
The relay being connected on battery is disconnected by control relay circuit after electricity, in order to avoid battery bulge caused by over-charging of battery
With flowing water problem, extends battery and avoid the caused safety problem of battery last charging；Relay disconnects
Afterwards, the power supply of charger is not pulled out, and embedded Control circuit can be by voltage and current sample circuit to cell voltage and electric current
Be detected, because battery for a long time it is uncharged will caused by electricity loss, when cell voltage be less than a certain value when, embedded control
Circuit processed can open relay and carry out supplementary type charging again.
Description of the drawings
Fig. 1 is the schematic block circuit diagram of the utility model；
Fig. 2 is full-bridge DC-DC converter circuit schematic diagram in the utility model.
Fig. 3 is the circuit diagram of voltage sampling circuit in the utility model.
Fig. 4 is the circuit diagram of current sampling circuit in the utility model.
Fig. 5 is the circuit diagram of embedded Control circuit in the utility model.
Fig. 6 is the pwm signal waveforms of pipe above and below full-bridge DC-DC converter in embodiment.
Fig. 7 is the voltage and current oscillogram that constant-current phase exports in embodiment.
Fig. 8 is the output voltage and current waveform figure of constant current and constant-voltage phase switching in embodiment.
Fig. 9 is the output voltage and current waveform figure of floating charge rank in embodiment.
Specific implementation mode
Below in conjunction with the accompanying drawings, the technical solution of the utility model is specifically described.
A kind of novel electric bicycle charger circuit of the utility model, including full-bridge DC-DC converter, embedded Control electricity
Road, voltage sampling circuit, current sampling circuit and control relay circuit；The full-bridge DC-DC converter includes four
Mosfet, a high frequency transformer and four diodes, the rectified circuit of input terminal are connected with input power, and output end is through one
The controllable switch controlled by control relay circuit is connected with battery；The embedded Control circuit and the full-bridge DC-DC
Converter, embedded Control circuit, voltage sampling circuit, current sampling circuit are connected with control relay circuit, the voltage
Sample circuit, current sampling circuit are connect with the DC output end of the full-bridge DC-DC converter, so that embedded Control is electric
Road through voltage sampling circuit, the voltage of current sampling circuit sampling battery, current signal, and then control full-bridge DC-DC converter,
The working condition of control relay circuit.
The embedded Control circuit uses TMS320F28069 chips.
The controllable switch is relay.
The full-bridge DC-DC converter further includes the first to the 9th capacitance, first to fourth resistance, the 5th diode, electricity
Sense, one end of the first mosfet and one end of the 3rd mosfet, one end of the first capacitance, one end of the second capacitance, third capacitance
One end, the 4th capacitance one end connection, and as the first input end of the full-bridge DC-DC converter, the first mosfet's
The other end and the other end of the first capacitance, one end of the 2nd mosfet, one end of the 5th capacitance, high frequency transformer it is first defeated
Enter end connection, the other end and the other end of the 4th capacitance of the 3rd mosfet, one end of the 4th mosfet, the 6th capacitance one
The second input terminal connection at end, high frequency transformer, the other end of the 2nd mosfet and the other end, the second capacitance of the 5th capacitance
The other end, the other end of third capacitance, the other end of the 4th mosfet, the 6th capacitance other end connection, and as described
First output end of the second input terminal of full-bridge DC-DC converter, high frequency transformer is connect with the anode of the first diode, high frequency
The second output terminal of transformer is connect with the cathode pole of third diode, the moon of the cathode of the first diode and the second diode
One end connection of pole, the anode of the 5th diode, inductance, the anode of third diode and one end of first resistor, the 7th capacitance
One end, the anode of the 4th diode, one end of the 4th resistance, one end of the 8th capacitance, the 9th capacitance one end connection, and make
For the second output terminal of the full-bridge DC-DC converter, the cathode of the 5th diode and the other end of first resistor, the 7th capacitance
Other end connection, the other end of inductance connect through second resistance, 3rd resistor with the other end of the 4th resistance, and inductance is also with the
The other end connection of the other end of eight capacitances, the 9th capacitance, and as the first output end of the full-bridge DC-DC converter.
The voltage sampling circuit includes the 5th resistance, the tenth capacitance, the 11st capacitance, the 6th diode, the 5th resistance
One end connect with the tie point of 3rd resistor and the 4th resistance, the other end of the 5th resistance and one end of the tenth capacitance, the tenth
One end of one capacitance, the anode of the 6th diode, embedded Control circuit voltage sampling port connection, the tenth capacitance it is another
End, the 11st capacitance the other end be connected to GND, the cathode of the 6th diode is connected to 3.3V power ends.
The current sampling circuit includes current sample chip ACS712, the 6th to the 7th resistance, the 12nd to the 14th
Capacitance, the 7th diode, IP+ pins, the IP- pins of current sample chip ACS712 are straight with the full-bridge DC-DC converter
Output end connection is flowed, the VCC pin of current sample chip ACS712 is connect with 5V power ends, and extremely through the 12nd capacitance connection
One end through the 6th resistance and the 7th resistance of the VOUT pins of GND, current sample chip ACS712, the 7th diode anode connect
It connects, GND pin through the 13rd capacitance and current sample chip ACS712 of the FILTER pins of current sample chip ACS712, the
The other end of seven resistances, the 14th capacitance one end be connected and be connected to GND, the cathode of the 7th diode and the 14th capacitance
The other end, which is connected, is connected to the current sampling port of embedded Control circuit.
It is the specific implementation example of the utility model below.
A kind of novel electric bicycle charger circuit of the utility model, as shown in Figure 1, including mainly full-bridge DC-DC transformation
Device circuit, embedded Control circuit, voltage sampling circuit, current sampling circuit and control relay circuit.
Full-bridge DC-DC converter is mainly made of four mosfet, a high frequency transformer and four uncontrollable diodes,
Its front end is connected with uncontrollable rectifier bridge, and rear end is connected with switching tube and battery.Mosfet pipes in full-bridge DC-DC converter
Switching frequency reaches 50kHZ, the volume for considerably reducing transformer and main circuit and cell load are isolated by transformer, compared with
Influence of the lateral circuit for secondary side circuit is lacked.
Embedded Control circuit mainly uses TMS320F28069 chips to realize battery three stage charging system.It mainly acquires electricity
The electric current and voltage signal in pond carry out signal processing using the PI controllers of built-in chip type, and by treated, message is believed by pwm
Number realize control for full-bridge DC-DC converter switching tube.Meanwhile embedded Control circuit detects and leads to after battery is fully charged
It crosses control relay circuit to disconnect the switch being connected on battery, realizes complete machine and power off unattended intelligence, reduce
The waste of electric energy is reduced expenses.
Voltage and current sample circuit is connected with the DC output end of full-bridge DC-DC converter, acquires the voltage of battery
And electric current.These signals are converted into digital quantity by A/D conversion modules, and as the input of PI controllers in chip.
Control relay circuit control is connected to the relay on-off between battery and full-bridge DC-DC converter, control letter
It number is mainly sent out by main control chip TMS320F28069.
As shown in Figure 2, the alternating current of front end 220V/50HZ is whole by not controlling for front end for the schematic diagram of full-bridge DC-DC converter
The direct current of 310V is obtained after stream bridge, and is connected with four mosfet pipes, capacitance in parallel on tetra- pipes of Q1, Q2, Q3, Q4
PC7, PC8, PC9, PC10 are respectively used to absorb stray inductance.T1 is high frequency transformer, and alternating current is depressured by transformer,
The secondary side of transformer is connected with diode D1, D2, D3, D4, realizes the direct current electricity output of rear end.On the bridge arm of diode
There are diode HER203, resistance PR10 and capacitance PC20, constitutes a RCD absorbing circuit.PR3, PR4, PR5 are output direct current
The divider resistance of pressure, could be by limiting voltage between 0-3V, to meet wanting for embedded chip A/D samplings after partial pressure
It asks.PC5 and PE3 stablizes the voltage waveform of output, and S6, S7 are that relay controls battery charging off-position.
Voltage sampling circuit is as shown in figure 3, the ADC10_V48 signals of voltage sampling circuit are full-bridge DC-DC converter electricity
Road is by obtained by PR3, PR4, PR5, the resistance value of PR3, PR4, PR5 are respectively 10K, 10K, 1K, the voltage value after partial pressure
ADC10_V48 disclosure satisfy that requirement of the embedded chip for analog quantity.ADC10_V48 signals are made up of AR1, AC1 and AC2
Low-pass filter after output voltage AD.VOUT2 as TMS320F28069 input quantity realize control, the effect of AD1 is anti-
Only the value of AD.VOUT2 exceeds 3.3V, chip None- identified.
Current sampling circuit as shown in figure 4, ACS712 chips convert current signal to voltage signal, and as
The input of TMS320F28069 chips.ACS712 chips are mainly made of eight feet, and 1,2 feet are the input of electric current, and 3,4 feet are electricity
The output of stream, 5 feet are signal ground terminal, and 6 feet are that bandwidth is arranged in the external capacitor of terminal, and 7 feet are the output signal of simulation,
Its initial voltage is the power supply terminal that Vcc*0.5,8 feet are equipment.
Embedded Control circuit as shown in figure 5, main control chip has been internally integrated A/D, D/A conversion module and PI controllers,
By the Cooperation controlling of modules, the main voltage and current signal for acquiring battery, which is analyzed and controls relay, realizes battery
Cut-out after fully charged.Main control chip is the embedded chip of TMS320F28069, and 51,52 feet connect the electricity of 3.3V, provide
The power supply of chip operation, 49,50 foot signal grounds, the break-make of the Charge_Onoff signal control relays of 38 feet, 33,31,
29, the signal of 27 feet is mainly supplied to tetra- pipes of Q1, Q2, Q3, Q4, its switch motion is made to meet the control of cell voltage and electric current
System requires.6, what 2 feet inputted is the analog quantity of battery current and voltage, so that chip is further processed.
During control, system work requires to set charge power according to three stage charging system, by certain
Time delay reads the input value of feedback AD, and the preset value of charging is compared to obtain deviation with three stages, and deviation passes through master
Built-in PI controllers are exported to control object in control chip TMS320F28069.When system because such as external voltage changes when,
System can carry out self adjustment, control output duty cycle.
Charging process is divided into constant high current fast charge, constant-potential charge, decompression floating charge three by three stage charging system circuit
Cell voltage is charged to about 58V by charging stage, first stage with the constant high current of 4A；Second stage is with constant 58V voltages
It charges the battery, charging current is decreased to 500mA；Voltage is down to about 56V and carries out floating charge, timing 60 by the phase III
Terminate charging process after minute.
The constant high current fast charges of A
After alternating current is by charger, accumulator starts to charge up.When just starting to charge up, battery tension is very low, charging current
It can be very big.When current sensor ACS712 detects that the voltage of battery is less than 58V, filled with constant 4A current versus cells
Electricity.The signal that current sensor ACS712 is detected is input to chip by 6 feet of TMS320F28069, and control Q1, Q2,
The duty ratio of tetra- pipes of Q3, Q4 makes it stablize in 4A.Meanwhile detecting cell voltage by 2 feet of TMS320F28069 chips
It is compared with preset 58V voltages in chip, the charge control of second stage is carried out when reaching 58V.
B constant-potential charges
The charging process of second stage, TMS320F28069 chips detect cell voltage by 2 feet, and 6 feet are detected
Current signal be compared with the current value of the preset 500mA of chip interior, pass through the output of the PI controllers of chip interior
Control the duty ratio of tetra- pipes of Q1, Q2, Q3, Q4.
C is depressured floating charge
With the increase in charging time, battery current is gradually reduced, and the electricity of battery gradually approaches to saturation.Control chip
When TMS320F28069 detects that electric current is less than 500mA by 6 feet, the control of control programming jump in chip to phase III
System.Phase III is charged the battery with constant 56V voltages, and the timer module timing of chip interior is led to after sixty minutes
The switch for crossing 38 foot block system relays of control chip, terminates charging process.
After power-off, embedded Control circuit detects battery status by predetermined period, makes electricity due to discharging naturally in battery
It presses and loses to after certain value, continue to mend electricity, ensure that battery is not damaged because of no use for a long time.
The utility model electric car charger circuit, circuit test results are as follows：
As shown in Figure 6, the voltage of first stage battery is relatively low for the driving circuit of Q1, Q2 pipe, and the voltage of output does not reach
To preset voltage 58V, main control chip is exported the maximum duty cycle of Q1, Q2 pipe by pi regulator, keeps output voltage continuous
Reach raising.
The voltage and current of constant-current phase output is as shown in fig. 7, according to given inside main control chip TMS320F28069
Constant current 4A is charged the battery, the electric current in figure（Yellow line）It gradually rises, stablizes when being finally raised to 4A, battery is filling
In the process of electricity, voltage（Green line）It gradually rises.
The output voltage and electric current of constant current and constant-voltage phase switching are as shown in figure 8, current value（Yellow line）From the first stage
Constant current 4A when being switched to the constant pressure 58V charging of second stage, increased again after switching point electric current is reduced to 0, according to the electricity of 58V
Pressure charges, and current value can gradually lower.
The output voltage and electric current in floating charge stage carry out constant-voltage charge as shown in figure 9, voltage is reduced to 56V, meanwhile, electric current subtracts
It is small to 500mA hereinafter, voltage and current value all tends towards stability.
A kind of novel electric bicycle charger circuit of the utility model, using TMS320F28069 chips as main control
Device uses Three stage mode charging method in charging.It is and pre- by embedded real-time detection cell voltage and charging current
If value is compared, the charged state of present battery is judged, and feed back to main control chip.Main control chip is by exporting different duties
Than changing the output voltage of charger, adjusting charged state.After tested, charger circuit can well be realized to accumulator
The adjusting of charged state is charged according to three stage charge modes, detects current charging voltage and electric current in real time.In detection electricity
After pond is full of, relay relay switch is controlled, protects battery.By cycle detection cell voltage, under cell voltage
It can continue to charge when dropping to predetermined value, the moment holds the cell at full power state, gives full play to the good result of charger circuit.
It is the preferred embodiment of the utility model above, it is all to change according to made by technical solutions of the utility model, it is produced
Function without departing from technical solutions of the utility model range when, belong to the scope of protection of the utility model.
Claims (6)
1. a kind of novel electric bicycle charger circuit, which is characterized in that including full-bridge DC-DC converter, embedded Control circuit,
Voltage sampling circuit, current sampling circuit and control relay circuit；The full-bridge DC-DC converter include four mosfet,
One high frequency transformer and four diodes, the rectified circuit of input terminal are connected with input power, and output end is through one by relay
The controllable switch of device control circuit control is connected with battery；The embedded Control circuit and the full-bridge DC-DC converter,
Embedded Control circuit, voltage sampling circuit, current sampling circuit are connected with control relay circuit, the voltage sample electricity
Road, current sampling circuit are connect with the DC output end of the full-bridge DC-DC converter, so that embedded Control circuit is through electricity
Sample circuit, the voltage of current sampling circuit sampling battery, current signal are pressed, and then controls full-bridge DC-DC converter, relay
The working condition of control circuit.
2. novel electric bicycle charger circuit according to claim 1, which is characterized in that the embedded Control circuit is adopted
With TMS320F28069 chips.
3. novel electric bicycle charger circuit according to claim 1, which is characterized in that the controllable switch is relay
Device.
4. novel electric bicycle charger circuit according to claim 1, which is characterized in that the full-bridge DC-DC converter
Further include the first to the 9th capacitance, first to fourth resistance, the 5th diode, inductance, one end of the first mosfet and third
One end of mosfet, one end of the first capacitance, one end of the second capacitance, one end of third capacitance, the 4th capacitance one end connect
It connects, and as the first input end of the full-bridge DC-DC converter, the other end of the first mosfet is another with the first capacitance
The first input end connection at end, one end of the 2nd mosfet, one end of the 5th capacitance, high frequency transformer, the 3rd mosfet's
Second input of the other end of the other end and the 4th capacitance, one end of the 4th mosfet, one end of the 6th capacitance, high frequency transformer
End connection, the other end of the 2nd mosfet and the other end of the 5th capacitance, the other end of the second capacitance, third capacitance it is another
The other end connection at end, the other end of the 4th mosfet, the 6th capacitance, and second as the full-bridge DC-DC converter is defeated
Enter end, the first output end of high frequency transformer connect with the anode of the first diode, the second output terminal of high frequency transformer and the
The cathode pole of three diodes connects, the cathode of the cathode of the first diode and the second diode, anode, the inductance of the 5th diode
One end connection, the anode of third diode and one end of first resistor, one end of the 7th capacitance, the 4th diode anode,
One end connection of one end of the 4th resistance, one end of the 8th capacitance, the 9th capacitance, and as the full-bridge DC-DC converter
Second output terminal, the cathode of the 5th diode and the other end of first resistor, the 7th capacitance the other end connection, inductance it is another
End connect with the other end of the 4th resistance through second resistance, 3rd resistor, inductance also with the other end of the 8th capacitance, the 9th capacitance
Other end connection, and as the first output end of the full-bridge DC-DC converter.
5. novel electric bicycle charger circuit according to claim 4, which is characterized in that the voltage sampling circuit includes
5th resistance, the tenth capacitance, the 11st capacitance, the 6th diode, one end of the 5th resistance and 3rd resistor and the 4th resistance
Tie point connects, the other end of the 5th resistance and one end of the tenth capacitance, one end of the 11st capacitance, the 6th diode sun
The voltage sampling port connection of pole, embedded Control circuit, the other end of the tenth capacitance, the other end of the 11st capacitance are connected to
The cathode of GND, the 6th diode are connected to 3.3V power ends.
6. novel electric bicycle charger circuit according to claim 4, which is characterized in that the current sampling circuit includes
Current sample chip ACS712, the 6th to the 7th resistance, the 12nd to the 14th capacitance, the 7th diode, current sample chip
IP+ pins, the IP- pins of ACS712 is connect with the DC output end of the full-bridge DC-DC converter, current sample chip
The VCC pin of ACS712 is connect with 5V power ends, and through the 12nd capacitance connection to GND, current sample chip ACS712's
VOUT pins are connect through the 6th resistance with the anode of one end of the 7th resistance, the 7th diode, current sample chip ACS712's
GND pin of the FILTER pins through the 13rd capacitance and current sample chip ACS712, the other end of the 7th resistance, the tenth
One end of four capacitances, which is connected, is connected to GND, and the cathode of the 7th diode is connected with the other end of the 14th capacitance is connected to embedded control
The current sampling port of circuit processed.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820373413.8U CN207968012U (en) | 2018-03-20 | 2018-03-20 | A kind of novel electric bicycle charger circuit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820373413.8U CN207968012U (en) | 2018-03-20 | 2018-03-20 | A kind of novel electric bicycle charger circuit |
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| CN201820373413.8U Expired - Fee Related CN207968012U (en) | 2018-03-20 | 2018-03-20 | A kind of novel electric bicycle charger circuit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114394004A (en) * | 2021-12-31 | 2022-04-26 | 南京信息工程大学 | Battery car sharing wireless charging device |
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2018
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114394004A (en) * | 2021-12-31 | 2022-04-26 | 南京信息工程大学 | Battery car sharing wireless charging device |
| CN114394004B (en) * | 2021-12-31 | 2023-08-22 | 南京信息工程大学 | Wireless charging device is shared to storage battery car |
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